Impact hypothesis loses its sparkle
Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be found.
Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be found.
Earth Sciences
Aug 30, 2010
22
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NASA-funded researchers are monitoring a big event in our planet's atmosphere. High above Earth's surface where the atmosphere meets space, a rarefied layer of gas called "the thermosphere" recently collapsed and now is rebounding ...
Earth Sciences
Jul 15, 2010
45
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(PhysOrg.com) -- There are seven major meteor showers remaining in 2010 (the Quadrantids occurred in early January 2010), with some more active than others. For example, April's Lyrids are expected to produce about 15 meteors ...
Space Exploration
Apr 22, 2010
1
0
When Tony Garchinski heard a loud crash just after 9 p.m. on Friday, September 25 he didn't think much of it. That is, until he awoke the next morning to find the windshield of his mom's Nissan Pathfinder with a huge crack ...
Space Exploration
Oct 16, 2009
2
0
(PhysOrg.com) -- Astronomers from The University of Western Ontario in London, Canada have released footage of a meteor that was approximately 100 times brighter than a full moon. The meteor lit up the skies of southern Ontario ...
Space Exploration
Oct 7, 2009
0
0
(PhysOrg.com) -- The expanding spot discovered on Venus last month may not have garnered as much attention as the meteor impact with Jupiter, but its cause is certainly more puzzling.
(PhysOrg.com) -- The car-sized asteroid that exploded above the Nubian Desert last October was small compared to the dinosaur-killing, civilization-ending objects that still orbit the sun. But that didn't stop it from having ...
Space Exploration
Mar 25, 2009
0
0
The dust of comets fills the space between the planets, collectively called the zodiacal cloud. Still, severe breakdown has reduced that dust in size so much that it now scatters sunlight efficiently, causing the faint glow ...
Astronomy
Mar 21, 2024
0
147
A team of planetary scientists at Arizona State University has found evidence that the multitude of bright flashes in Venus' atmosphere may be due to meteors passing through, not lightning strikes. In their paper published ...
The annual Perseid meteor shower reaches its peak this weekend, sending bright trails of light streaking across the night sky.
Space Exploration
Aug 9, 2023
0
549